1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
emmainna [20.7K]
3 years ago
12

An isosceles triangle has two sides of equal length. The third side is 5 less than twice the length of one of the other sides. I

f the perimeter of the triangle is 23 cm, what is the length of the third side?
Explain how you would define a variable for this problem.

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
7 0
Let's take one side of the two equal lengths as r
third side is s.
so the total perimeter is r + r + s
2r + s = 23

According to the statement of third side s, 
5 less than twice the length of one of other
s = 2r - 5

we have 2 equations and 2 unknowns. so we can find out the values of those letters.

2r + s = 23
2r - s = 5

4r = 28
r = 7

s = 9
Therefore the third length will be equal to 9 cm.


fredd [130]3 years ago
6 0

Answer:

See below.

Step-by-step explanation:

You might be interested in
What decimal is equal to 6/20<br><br><br> O 0.2<br> O 0.3<br> O 0.6<br> O 0.8
son4ous [18]
The answer is 0.3 :)................
4 0
2 years ago
Read 2 more answers
What is 25.7692307692 rounded to?
gtnhenbr [62]
25.7692307692 rounded  is 25.8
8 0
3 years ago
Read 2 more answers
4x/5 + 2/3 + 1x/5 = x
Ksju [112]

Answer:

There are no solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x/5+2/3+1x/5=x

4/5x+2/3+1/5x=x

(4/5x+1/5x)+(2/3)=x(Combine Like Terms)

x+23=x

x+23=x

Step 2: Subtract x from both sides.

x+2/3−x=x−x

2/3=0

Step 3: Subtract 2/3 from both sides.

2/3−2/3=0−2/3

0=−2/3

Answer:

There are no solutions.

6 0
3 years ago
Read 2 more answers
Answer 4. Pls pls ASAP ASAP pls ASAP please ASAp
vlabodo [156]

Answer:

56 in2

Step-by-step explanation:

14x8x1/2 (1/2 because a trapezoid formula divides by 2)

112x1/2

=56

8 0
2 years ago
Suppose that the functions p and q are defined as follows.p(x) = -2x + 1q(x)=-x?Find the following.
MariettaO [177]

First let us find

(q\mathrm{}p)(x)\begin{gathered} q(p(x))=q(-2x+1) \\ =-(-2x+1)^2 \\ So\text{ } \\ (q\mathrm{}p)(5)=-(-2\times5+1)^2 \\ =-(9)^2 \\ =-81 \end{gathered}

Now let;s solve the second part

\begin{gathered} (p\mathrm{}q)(x)=p(q(x)) \\ =p(-x^2) \\ =-2(-x^2)+1 \\ =2x^2+1 \\ So\text{ (p.q)(5) will be } \\ (p\mathrm{}q)(5)=2(5)^2+1 \\ =51 \end{gathered}

6 0
1 year ago
Other questions:
  • Is a kiloliter greater than one liter
    12·2 answers
  • Point B(6, –2) is translated using the rule (x – 4, y + 3).
    14·1 answer
  • Determine which ratio form a proportion with 8/3 by finding a common multiplier
    5·1 answer
  • A=2,b=1,find the value of a+b.​
    8·2 answers
  • The function f is defined by f(x)=200÷x−b, where b is a constant. Find b, if the value of f at x= 1/3 is equal to 150.
    12·1 answer
  • 3y-15x=y<br><br> What is the slope intercept form
    7·2 answers
  • Problem Page Last year, Donna had $30,000 to invest. She invested some of it in an account that paid 9% simple interest per year
    10·1 answer
  • There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 7 8 . There are 72 m
    7·1 answer
  • ben has 165 pictures he puts 6 pictures on each page of a photo album. how many pages of the album did ben fill? how many pages
    5·2 answers
  • Krysta has $100 in a savings account that earns 5% annually. The interest is not
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!